Mathematics, 23.03.2021 16:40 2sally2

Em um terreiro, há galinhas e ovelhas, num total de 21 animais e 50 pés. Quantos animais bípedes há nesse terreiro? Observação: Adote x = galinha e y = ovelha

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Em um terreiro, há galinhas e ovelhas, num total de 21 animais e 50 pés. Quantos animais bípedes há...

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